The purpose of this article is to estimate the accuracy of surface temperature measurement using the liquid crystal thermography method. The measurement setup for calibrating thermosensitive liquid crystals is discussed in order to establish the relationship between the displayed color and the corresponding surface temperature. Detailed results obtained from an example calibration experiment are included. A detailed calculation procedure leading to the estimation of surface temperature measurement accuracy in studies with thermosensitive liquid crystals is presented. The accuracy of surface temperature measurements performed on the presented experimental setup was estimated at 0.86 K.Liquid crystal thermography is a non-contact temperature measurement method used in various fields of engineering. In this method, liquid crystals applied to the surface of a solid body allow for obtaining a temperature distribution on the surface in the form of a color map. (…)
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Source: Logistyka Magazine